The MTB Quick Question Thread 3.0 - Parts names & abreviations link on first post.

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The MTB Quick Question Thread 3.0 - Parts names & abreviations link on first post.
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Posted: Aug 2, 2012 at 11:59 Quote
bigfootrider10 wrote:
ive seen fork oil at canadian tire, shouldnt be hard to get a hold of


My Canadian Tire didn't have fork oil....had to bike down to the motorcycle store on the outskirts of town...couple of the motorcycle guys actually liked my bike. They didn't even know Fox, Maxxis or Marzocchi made mountain bike parts.

Posted: Aug 2, 2012 at 12:46 Quote
another fork question . I have a pike 454 coil u turn and I dont usually adjust the travel but decided to today. the uturn knob is really hard to turn so hard that I cant lower my fork at all anyone know what the cause is? should I just take it to the lbs?

Posted: Aug 2, 2012 at 13:02 Quote
Thepureface wrote:
another fork question . I have a pike 454 coil u turn and I dont usually adjust the travel but decided to today. the uturn knob is really hard to turn so hard that I cant lower my fork at all anyone know what the cause is? should I just take it to the lbs?

It may just need a really firm twist to loosen it at first. The system works on a plastic helix that moves up and down when the spring is twisted via the dial. What could have happened is at full travel this plastic helix has got wedged at the bottom of the coil as the spring bunches up at the end.

If in doubt, Unscrew the coil via the big hex nut at the top and undo the hex bolt at the bottom (undo it a few turns and give it a tap to free it then fully unscrew it) Then pull the whole unit out from the top. Give it a check over and try and loosen that plastic helix. If you've never done fork servicing before its nothing to be afraid of as it just needs grease on the spring and 15ml of 15wt oil in on reassembly.

Any more questions just ask Smile

Posted: Aug 2, 2012 at 13:05 Quote
thanks alot, I never have done fork service. how do I know how much fork oil goes back in? is there an instruction manual or just measure what comes out?

Posted: Aug 2, 2012 at 13:10 Quote
Thepureface wrote:
thanks alot, I never have done fork service. how do I know how much fork oil goes back in? is there an instruction manual or just measure what comes out?

Not alot will come out as its purely for lubrication.

Just only undo the spring side leave the damper alone.

its 15ml of 15wt fork oil.

http://www.sram.com/_media/pdf/rockshox/dealers/TM_MY09_E.pdf Here is a manual should you need diagrams and such. Have a good skim through and the bit you need is on page 39.

Posted: Aug 2, 2012 at 13:11 Quote
Thepureface wrote:
thanks alot, I never have done fork service. how do I know how much fork oil goes back in? is there an instruction manual or just measure what comes out?

google for the manual, there should be a PDF file somewhere online.

and measuring what comes out isn't always what should go back in.

Posted: Aug 2, 2012 at 13:22 Quote
When using the DTSwiss spoke calculator, where it says number of intersections, is that a per spoke or generally?

i.e. im doing 3x so would it be: 3x left, 3x right

or

would it be the mount of leading spokes x3?

Posted: Aug 2, 2012 at 13:24 Quote
As i thought. Thanks!

Posted: Aug 2, 2012 at 13:52 Quote
turtlesauce2000 wrote:
Thepureface wrote:
thanks alot, I never have done fork service. how do I know how much fork oil goes back in? is there an instruction manual or just measure what comes out?

Not alot will come out as its purely for lubrication.

Just only undo the spring side leave the damper alone.

its 15ml of 15wt fork oil.

http://www.sram.com/_media/pdf/rockshox/dealers/TM_MY09_E.pdf Here is a manual should you need diagrams and such. Have a good skim through and the bit you need is on page 39.


thanks dude!

and good point debonis

Posted: Aug 2, 2012 at 15:32 Quote
hey guys. just to double check..

this upper and lower parts for an e thirteen chainguide are for the ls1 yes? seller is telling meh that its from an lg1.

Unsecure image, only https images allowed: http://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash3/s480x480/527512_4532264189775_675566170_n.jpg
as they look the same as this which is called the LS HT on the e thirteen website.

Unsecure image, only https images allowed: http://www.e13components.com/images/product/ls_ht_main.jpg
will this backplate work?


if not then could you point me in the right direction please? thanks Big Grin

Posted: Aug 2, 2012 at 16:16 Quote
trozei wrote:
mr-nozzer wrote:
So I'm going to rebuild and lower my Marzo DJ1's. 07. I was wondering what oil I should use to top them back up?
Anything from 5 to 10 weight oil is good for forks. 7.5 is generally the recommended weight. My fork just has 10 weight Castrol Syntec in it. Rides much better than it ever did.

The "wt" for motor oil is very different from the "wt" for suspension oil. A 10 wt motor oil is many many many times thicker than a 10 wt suspension oil. Not to mention the "wt" classification varies a lot from brand to brand as well. The value that matters is the "cst" at certain temperatures which is a true measure of viscosity.

This is the most complete list I've come across on the web. The large variances of viscosities from the same "wt" classification can clearly be seen here.
http://www.peterverdone.com/wiki/index.php?title=Suspension_Fluid

You can use ATF, light synthetic motor oil (0w30) or thin hydraulic oil (for forklifts) instead of fork oil - all of which are cheap and available at walmart/canadian tire and won't damage the DJ1, nor will you really notice any difference in "quality" of dampening. It's better to service a fork with this oil than waiting until you find cheap fork oil/not doing it because fork oil is overpriced.

For forks with a sealed dampening cartridge (ie: Fox FiT) you can definitely still use synthetic motor oil for the lubrication areas outside the damper.

Posted: Aug 2, 2012 at 16:24 Quote
That reminds me, float fluid is 75w normal oil, but I have huge tubs of like 5w40 oil and 15w40, would they be a decent replacement for the 75w you should use? Or stay away?

Posted: Aug 2, 2012 at 16:25 Quote
i've definetly noticed that not all oils perform the same, my boxxer seem to feel best with rockoil's offerings. (their 15wt in the lowers and their 5wt in the damper)

Posted: Aug 2, 2012 at 16:26 Quote
tomcrowther wrote:
That reminds me, float fluid is 75w normal oil, but I have huge tubs of like 5w40 oil and 15w40, would they be a decent replacement for the 75w you should use? Or stay away?
isn't 75wt basically gear oil?


 
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